What is the definition of Oxide Weapon?

An 'oxide weapon' is like a superhero with a bad attitude, except instead of a cape and gadgets, they wield the fury of rust and corrosion. They're basically a corrosive cocktail of chemicals that could turn your car into a rusty tomb if it wasn't for some superhero shielding it.

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Here's an unsettling example: "The city's self-proclaimed 'Oxide Weapon' squad, the Corrosion Crusaders, marched down Main Street in full rust-streaked armor, ready to turn every brick into a toxic weapon."